CN108154268A - The method of quick estimation Small Hydropower Stations generated energy - Google Patents
The method of quick estimation Small Hydropower Stations generated energy Download PDFInfo
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- CN108154268A CN108154268A CN201711425984.8A CN201711425984A CN108154268A CN 108154268 A CN108154268 A CN 108154268A CN 201711425984 A CN201711425984 A CN 201711425984A CN 108154268 A CN108154268 A CN 108154268A
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- 238000000034 method Methods 0.000 title claims abstract description 23
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Abstract
The present invention proposes a kind of method of quick estimation Small Hydropower Stations generated energy, pass through the higher large medium-size station generated energy data of the technical support level that can be grasped in real time for electric dispatching department and the precipitation region data being easy to get, with reference to the analysis and application to historical data, the essential objective attribute of generated energy is dexterously grasped so as to estimate the real time data of scattered distribution, data collection inconvenience small hydropower station generated energy.Compared to the prior art, the method of the present invention can be in the case where neither increasing hardware resource and reducing by line meter reading personnel's operating pressure, the whole daily generation of Small Hydropower Stations is relatively accurately estimated, and the efficiency of current small hydropower station generated energy data summarization greatly improved.
Description
Technical field
The invention belongs to generated energy statistics field more particularly to a kind of methods of quick estimation Small Hydropower Stations generated energy.
Background technology
Small hydropower station refers to the smaller power station of installed capacity or hydroelectric installation, " the small water of second itternational in 1980
Power technology develops studies discussion with applicating expedition " suggest：Small power station is defined as the power station of below 12000kW.
In the area that small hydropower resources are abundant, such as south China, small hydropower station radix is big, thus while single station capacity is small,
But whole generated energy is statistically very important.
In the area that small hydropower station generated energy accounting is larger, it is necessary to count the entirety of small power station daily for electric dispatching department
Generated energy data.It, at this stage can not be whole along with distribution is upper multi-point and wide-ranging but since small hydropower station technical support means fall behind
Real-time generated energy data are acquired by automation means, all unification installs automation collection equipment operationally by small hydropower station
It is unrealistic also uneconomical.
Therefore, the method that small hydropower station electricity data is reported and submitted using manual metering and reported step by step at present, although data compared with
To be accurate, but there are the time delay of 1-2 days, and it is serious by interference from human factor, it is also possible to therefore generate other errors.
Invention content
In view of the problems of the existing technology, the present invention uses following technical scheme：
A kind of method of quick estimation Small Hydropower Stations generated energy, which is characterized in that include the following steps：
Step 1：It is divided according to network of rivers distribution and power station distribution and calculates region, in the same network of rivers in the measuring and calculating region
In large medium-size station and small hydropower station is distributed with；
Step 2：Calculate the daily Runoff Rainfall amount W in N days in measuring and calculating regionn；The daily Runoff Rainfall
Measure WnConversion acquisition is weighted by calculating practical precipitation R in region；It is described weighting conversion method be：Wherein, RiIt is the practical precipitation of i-th day；Ri-1It is the practical drop of the proxima luce (prox. luc) of i-th day
Water；Ri2It is the practical precipitation of two days before i-th day；WiIt is the Runoff Rainfall of i-th day；
Step 3：According to every daily generation D of the large medium-size station in N days in measuring and calculating regionnAnd corresponding daily diameter
Flow precipitation Wn, by conic fitting, obtain D-W relation curves；By the D-W relation curves, by large medium-size station
In the generated energy D of jth dayjIt can obtain the Runoff Rainfall W of corresponding jth dayj；
Step 4：According to every daily generation X of the small hydropower station in N days in measuring and calculating regionnAnd the corresponding drop per diurnal courses
Water Wn, by conic fitting, obtain X-W relation curves；Wherein, every daily generation X of the small hydropower station in N daysnIt is logical
Cross manual metering acquisition；By the X-W relation curves, by the Runoff Rainfall W of jth dayjCorresponding small hydropower station is can obtain to exist
The generated energy X of jth dayj。
Preferably, it is further comprising the steps of：
Step 5：D-X relation curves are obtained according to the D-W relation curves and X-W relation curves；It is closed by the D-X
Be curve, by large medium-size station jth day generated energy DjCan directly obtain it is same measuring and calculating region in small hydropower station in jth day
Generated energy Xj。
Preferably, N=30.
Preferably, the method that conversion is weighted described in step 2 is：
Wherein, RiIt is the practical precipitation of i-th day；Ri-1It is the practical precipitation of the proxima luce (prox. luc) of i-th day, Ri-2It is two days before i-th day
Practical precipitation, Ri-mIt is the practical precipitation of m days before i-th day；WiIt is the Runoff Rainfall of i-th day.
Preferably, the D-W relation curves are D-W relation tables；The X-W relation curves are X-W relation tables.
Preferably, the D-W relation curves and X-W relation curves monthly update, the described N days whole for last calendar month
Date.
The method economy of the present invention, efficiently, it is horizontal to pass through the technical support that can be grasped in real time for electric dispatching department
Higher large medium-size station generated energy data and the precipitation region data being easy to get, with reference to the analysis to historical data and
Using small water that dexterously grasp the essential objective attribute of generated energy so as to estimate scattered distribution, data collection inconvenience
The real time data of power station generated energy.Compared to the prior art, the method for the present invention can neither increase hardware resource and reduction one
In the case of line meter reading personnel's operating pressure, the whole daily generation of Small Hydropower Stations is relatively accurately estimated, and significantly
The efficiency of the current small hydropower station generated energy data summarization improved.
Description of the drawings
The present invention is described in more detail with reference to the accompanying drawings and detailed description：
Fig. 1 is flow diagram of the embodiment of the present invention.
Specific embodiment
Feature and advantage to allow this patent can be clearer and more comprehensible, and special embodiment below is described in detail below：
As shown in Figure 1, the present embodiment method includes the following steps：
Step 1：Measuring and calculating region is divided according to network of rivers distribution and power station distribution, calculates in region and divides in the same network of rivers
It is furnished with large medium-size station and small hydropower station；
Step 2：Calculate the daily Runoff Rainfall amount W in N days in measuring and calculating regionn；Daily Runoff Rainfall amount WnPass through measuring and calculating
Practical precipitation R is weighted conversion acquisition in region；Weighting the method to convert is：Its
In, RiIt is the practical precipitation of i-th day；Ri-1It is the practical precipitation of the proxima luce (prox. luc) of i-th day；Ri-2It is two days before i-th day
Practical precipitation；WiIt is the Runoff Rainfall of i-th day；
Step 3：According to every daily generation D of the large medium-size station in N days in measuring and calculating regionnAnd corresponding daily diameter
Flow precipitation Wn, by conic fitting, obtain D-W relation curves；By D-W relation curves, by large medium-size station in jth
The generated energy D of dayjIt can obtain the Runoff Rainfall W of corresponding jth dayj；
Step 4：According to every daily generation X of the small hydropower station in N days in measuring and calculating regionnAnd the corresponding drop per diurnal courses
Water Wn, by conic fitting, obtain X-W relation curves；Wherein, every daily generation X of the small hydropower station in N daysnPass through people
Work meter reading obtains, and manual metering is although less efficient, and there is the time delay reported, but its precision is secure；Pass through X-W relationships song
Line, by the Runoff Rainfall W of jth dayjIt can obtain generated energy X of the corresponding small hydropower station in jth dayj
Step 5：D-X relation curves are obtained according to D-W relation curves and X-W relation curves；By D-X relation curves, by
Large medium-size station is in the generated energy D of jth dayjCan directly obtain it is same measuring and calculating region in small hydropower station jth day generated energy
Xj。
In the present embodiment, in order to improve the precision of estimation, the method that conversion is weighted in step 2 also can be replaced：Wherein, RiIt is the practical precipitation of i-th day；Ri-1Be i-th day it
The practical precipitation of proxima luce (prox. luc), Ri-2It is the practical precipitation of two days before i-th day, Ri-mIt is the practical precipitation of m days before i-th day
Amount；WiIt is the Runoff Rainfall of i-th day.The practical precipitation data of more number of days is introduced, the measuring and calculating essence of Runoff Rainfall will be promoted
Degree, but the burden that can increase calculating ties down efficiency.
In order to be further simplified the operation difficulty of estimation, in the present embodiment, D-W relation curves can be converted into discrete
D-W relation tables；X-W relation curves are converted into discrete X-W relation tables, and the D-X relation curves in step 5 can also pass through D-W
Relation table and X-W relation tables directly obtain D-X relation tables.The precision of relation table can be formulated according to actual conditions and required precision.
In the present embodiment, due to the operation of small hydropower station and to shut down situation of change more, D-W relation curves and X-W are closed
It is that curve should monthly update, N days whole dates for last calendar month.
This patent is not limited to above-mentioned preferred forms, anyone can obtain other each under the enlightenment of this patent
The method of the quick estimation Small Hydropower Stations generated energy of kind of form, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of this patent.
Claims (6)
- A kind of 1. method of quick estimation Small Hydropower Stations generated energy, which is characterized in that include the following steps：Step 1：Measuring and calculating region is divided according to network of rivers distribution and power station distribution, is divided in the same network of rivers in the measuring and calculating region It is furnished with large medium-size station and small hydropower station；Step 2：Calculate the daily Runoff Rainfall amount W in N days in measuring and calculating regionn；The daily Runoff Rainfall amount WnConversion acquisition is weighted by calculating practical precipitation R in region；It is described weighting conversion method be：Wherein, RiIt is the practical precipitation of i-th day；Ri-1It is the practical drop of the proxima luce (prox. luc) of i-th day Water；Ri-2It is the practical precipitation of two days before i-th day；WiIt is the Runoff Rainfall of i-th day；Step 3：According to every daily generation D of the large medium-size station in N days in measuring and calculating regionnAnd corresponding daily Runoff Rainfall Wn, by conic fitting, obtain D-W relation curves；By the D-W relation curves, by large medium-size station in jth day Generated energy DjIt can obtain the Runoff Rainfall W of corresponding jth dayj；Step 4：According to every daily generation X of the small hydropower station in N days in measuring and calculating regionnAnd corresponding daily Runoff Rainfall Wn, By conic fitting, X-W relation curves are obtained；Wherein, every daily generation X of the small hydropower station in N daysnPass through people Work meter reading obtains；By the X-W relation curves, by the Runoff Rainfall W of jth dayjCorresponding small hydropower station be can obtain in jth day Generated energy Xj。
- 2. the method for quick estimation Small Hydropower Stations generated energy according to claim 1, which is characterized in that further include following Step：Step 5：D-X relation curves are obtained according to the D-W relation curves and X-W relation curves；Pass through D-X relationships song Line, by large medium-size station jth day generated energy DjCan directly obtain it is same measuring and calculating region in small hydropower station jth day hair Electricity Xj。
- 3. the method for quick estimation Small Hydropower Stations generated energy according to claim 1, it is characterised in that：N=30.
- 4. the method for quick estimation Small Hydropower Stations generated energy according to claim 1, which is characterized in that institute in step 2 Stating the method that weighting converts is：Wherein, RiIt is the reality of i-th day Precipitation；Ri-1It is the practical precipitation of the proxima luce (prox. luc) of i-th day, Ri-2It is the practical precipitation of two days before i-th day, Ri-mIt is i-th The practical precipitation of m days before day；WiIt is the Runoff Rainfall of i-th day.
- 5. the method for quick estimation Small Hydropower Stations generated energy according to claim 1, it is characterised in that：The D-W is closed Be curve be D-W relation tables；The X-W relation curves are X-W relation tables.
- 6. the method for quick estimation Small Hydropower Stations generated energy according to claim 1, it is characterised in that：The D-W is closed It is that curve and X-W relation curves monthly update, described N days whole dates for last calendar month.
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